I can fertilize you can fertilize he can fertilize we can fertilize you can fertilize they can fertilize
Forme en V-ing
I can be fertilizing you can be fertilizing he can be fertilizing we can be fertilizing you can be fertilizing they can be fertilizing
Perfect
I can have fertilized you can have fertilized he can have fertilized we can have fertilized you can have fertilized they can have fertilized
Perfect en V-ing
I can have been fertilizing you can have been fertilizing he can have been fertilizing we can have been fertilizing you can have been fertilizing they can have been fertilizing
Négation
Forme simple
I can't fertilize you can't fertilize he can't fertilize we can't fertilize you can't fertilize they can't fertilize
Forme en V-ing
I can't be fertilizing you can't be fertilizing he can't be fertilizing we can't be fertilizing you can't be fertilizing they can't be fertilizing
Perfect
I can't have fertilized you can't have fertilized he can't have fertilized we can't have fertilized you can't have fertilized they can't have fertilized
Perfect en V-ing
I can't have been fertilizing you can't have been fertilizing he can't have been fertilizing we can't have been fertilizing you can't have been fertilizing they can't have been fertilizing
Forme interrogative
Forme simple
can I fertilize? can you fertilize? can he fertilize? can we fertilize? can you fertilize? can they fertilize?
Forme en V-ing
can I be fertilizing? can you be fertilizing? can he be fertilizing? can we be fertilizing? can you be fertilizing? can they be fertilizing?
Perfect
can I have fertilized? can you have fertilized? can he have fertilized? can we have fertilized? can you have fertilized? can they have fertilized?
Perfect en V-ing
can I have been fertilizing? can you have been fertilizing? can he have been fertilizing? can we have been fertilizing? can you have been fertilizing? can they have been fertilizing?
Forme interro-négative
Forme simple
can't I fertilize? can't you fertilize? can't he fertilize? can't we fertilize? can't you fertilize? can't they fertilize?
Forme en V-ing
can't I be fertilizing? can't you be fertilizing? can't he be fertilizing? can't we be fertilizing? can't you be fertilizing? can't they be fertilizing?
Perfect
can't I have fertilized? can't you have fertilized? can't he have fertilized? can't we have fertilized? can't you have fertilized? can't they have fertilized?
Perfect en V-ing
can't I have been fertilizing? can't you have been fertilizing? can't he have been fertilizing? can't we have been fertilizing? can't you have been fertilizing? can't they have been fertilizing?